# import random
# from math import sin, cos, pi, log
# from tkinter import *
#
# CANVAS_WIDTH = 640
# CANVAS_HEIGHT = 480
# CANVAS_CENTER_X = CANVAS_WIDTH / 2
# CANVAS_CENTER_Y = CANVAS_HEIGHT / 2
# IMAGE_ENLARGE = 11
# HEART_COLOR = "#ff2121"
#
# def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):
#     """
#     “爱心函数生成器”
#     :param shrink_ratio: 放大比例
#     :param t: 参数
#     :return: 坐标
#     """
#     # 基础函数
#     x = 16 * (sin(t) ** 3)
#     y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))
#
#     x *= shrink_ratio
#     y *= shrink_ratio
#
#     # 移到画布中央
#     x += CANVAS_CENTER_X
#     y += CANVAS_CENTER_Y
#
#     return int(x), int(y)
#
# def scatter_inside(x, y, beta=0.15):
#     """
#     :param x: 原x
#     :param y: 原y
#     :param beta: 强度
#     :return: 新坐标
#     """
#     ratio_x = - beta * log(random.random())
#     ratio_y = - beta * log(random.random())
#
#     dx = ratio_x * (x - CANVAS_CENTER_X)
#     dy = ratio_y * (y - CANVAS_CENTER_Y)
#
#     return x - dx, y - dy
#
# def shrink(x, y, ratio):
#     """
#
#     :param x: 原x
#     :param y: 原y
#     :param ratio: 比例
#     :return: 新坐标
#     """
#     force = -1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.6)
#     dx = ratio * force * (x - CANVAS_CENTER_X)
#     dy = ratio * force * (y - CANVAS_CENTER_Y)
#     return x - dx, y - dy
#
# def curve(p):
#     """
#     :param p: 参数
#     :return: 正弦
#     """
#
#     return 2 * (2 * sin(4 * p)) / (2 * pi)
#
# class Heart:
#     """
#
#     """
#     def __init__(self, generate_frame=20):
#         self._points = set()
#         self._edge_diffusion_points = set()
#         self._center_diffusion_points = set()
#         self.all_points = {}
#         self.build(2000)
#
#         self.random_halo = 1000
#
#         self.generate_frame = generate_frame
#         for frame in range(generate_frame):
#             self.calc(frame)
#
#     def build(self, number):
#         # 爱心
#         for _ in range(number):
#             t = random.uniform(0, 2 * pi)
#             x, y = heart_function(t)
#             self._points.add((x, y))
#
#         # 爱心内扩散
#         for _x, _y in list(self._points):
#             for _ in range(3):
#                 x, y = scatter_inside(_x, _y, 0.05)
#                 self._edge_diffusion_points.add((x, y))
#
#         point_list = list(self._points)
#         for _ in range(4000):
#             x, y = random.choice(point_list)
#             x, y = scatter_inside(x, y, 0.17)
#             self._center_diffusion_points.add((x, y))
#
#     @staticmethod
#     def calc_position(x, y, ratio):
#         # 调整缩放比例
#         force = 1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.520)
#
#         dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)
#         dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)
#
#         return x - dx, y - dy
#
#     def calc(self, generate_frame):
#         ratio = 10 * curve(generate_frame / 10 * pi)
#
#         halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
#         halo_number = int(3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))
#
#         all_points = []
#
#         # 光环
#         heart_halo_point = set()
#         for _ in range(halo_number):
#             t = random.uniform(0, 2 * pi)
#             x, y = heart_function(t, shrink_ratio=11.6)
#             x, y = shrink(x, y, halo_radius)
#             if (x, y) not in heart_halo_point:
#                 # 处理新的点
#                 heart_halo_point.add((x, y))
#                 x += random.randint(-14, 14)
#                 y += random.randint(-14, 14)
#                 size = random.choice((1, 2, 2))
#                 all_points.append((x, y, size))
#
#         # 轮廓
#         for x, y in self._points:
#             x, y = self.calc_position(x, y, ratio)
#             size = random.randint(1, 3)
#             all_points.append((x, y, size))
#
#         # 内容
#         for x, y in self._edge_diffusion_points:
#             x, y = self.calc_position(x, y, ratio)
#             size = random.randint(1, 2)
#             all_points.append((x, y, size))
#
#         for x, y in self._center_diffusion_points:
#             x, y = self.calc_position(x, y, ratio)
#             size = random.randint(1, 2)
#             all_points.append((x, y, size))
#
#         self.all_points[generate_frame] = all_points
#
#     def render(self, render_canvas, render_frame):
#         for x, y, size in self.all_points[render_frame % self.generate_frame]:
#             render_canvas.create_rectangle(x, y, x + size, y + size, width=0, fill=HEART_COLOR)
#
# def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):
#     render_canvas.delete('all')
#     render_heart.render(render_canvas, render_frame)
#     main.after(160, draw, main, render_canvas, render_heart, render_frame + 1)
#
# if __name__ == '__main__':
#     root = Tk()
#     canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)
#     canvas.pack()
#     heart = Heart()
#     draw(root, canvas, heart)
#     root.mainloop()
#


#面向对象
#类和方法
# class message:
#     def send_message(self, name,info):
#         print(f'给{name}发送：{info}')
# #实例化一个对象
# obj=message()
# obj.send_message("小峰","成功上岸")


#对象和self
# class message:
#     def __init__(self,name,info):
#         self.name=name  #实例变量，属于对象不属于类
#         self.info=info
#     def send_message(self, name,info):
#         print(f'给{name}发送：{info}')
# #实例化一个对象
# obj=message("xiaofeng","bye")  #自动执行__int__方法，模块会将创建的那块区域的地址传当做self参数传过去，进而调佣方法
# obj.send_message("小峰","成功上岸")


#常见的成员--统称
#在编写面向对象的相关代码的时候：最常见的成员有：
#实例变量，属于对象，只能通过对象调用
#绑定方法，属于类，通过对象调用或者通过类调用

#初识面向对象的三大特性：封装、继承、多态
#封装：将同一类的方法和功能进行封装，将数据封装到了对象
# 继承，子类（派生类）继承父类（基类）
#      帮助实现方法的重用
# class Base:
#     def func(self):
#         print('Base.func')
# class Son(Base):
#     def show(self):
#         print("Son.show")
# s1=Son()
# s1.show()
# s1.func()  #优先会在自己的类中找，自己没有才会去父类找
#
# s2=Base()
# s2.func()

#练习题
# class Base:
#     def f1(self):
#         print('Base.f1')
# class Foo(Base):
#     def f2(self):
#         print('before')
#         self.f1()
#         print('Foo.f2')
# obj=Foo()
# obj.f2()
#自己优先
# class Base:
#     def f1(self):
#         print('Base.f1')
# class Foo(Base):
#     def f2(self):
#         print('before')
#         self.f1()
#         print('Foo.f2')
#     def f1(self):
#         print('Foo.f1')
# obj=Foo()
# # obj.f1()
# obj.f2()

# class Base:
#     def f1(self):
#         print("before")
#         self.f2()  #注意：obj->f2
#         print('Base.f1')
#     def f2(self):
#         print('Base.f2')
# class Foo(Base):
#     def f2(self):
#         print('Foo.f2')
#
# obj=Foo()
# obj.f1()

# class Base:
#     def f1(self):
#         print("before")
#         self.f2()
#         print('Base.f1')
#     def f2(self):
#         print('Base.f2')
# class Foo(Base):
#     def f2(self):
#         print('Foo.f2')
#
# b1=Base()
# b1.f1()

#多继承  优先找左边的父类
# class Base:
#     def f1(self):
#       print('Base.f1')
# class Foo():
#     def f1(self):
#        print('Foo.f1')
# class Too(Base,Foo):
#     def run(self):
#         print("before")
#         self.f1()
#         print("after")
# obj=Too()
# obj.run()


#注意查找的优先级顺序，理清楚self是谁
# class Base:
#     def f1(self):
#         self.f2()
#         print('Base.f1')
#     def f2(self):
#         self.f3()
#         print('Base.f2')
#     def f3(self):
#         print('Base.f3')
#
# class Foo(Base):
#     pass
#
# class Moo:
#     def f3(self):
#         print('Moo.f3')
#
# class Too(Moo,Foo):
#    pass
# obj=Too()
# obj.f1()
# #Moo.f3
# #Base.f2
# #Base.f1